The name Meri in Hebrew letters is מרי. Below: how its number adds up, which page of the Torah it falls on and what verse stands there. Everything is computed, nothing is guessed.
מרי
In short
Your name in Hebrew letters is מרי. The name comes from Hebrew: from מרים, Miriam; in the Tanakh, the name of two Israelite women (Exodus 15:20). Adding up the numbers of its letters gives 250. That number points to Torah page 250 of 354 — in the portion Shlach. What that portion is about: The twelve spies; forty years for forty days; challah and tzitzit. The verse that begins with the first letter of your name and ends with the last is Exodus 22:28. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Meri” — this exact spelling is what was calculated: מרי. A name from the Tanakh — its Tanakh spelling is used. If your name is spelled differently, correct the Hebrew spelling and the report is recomputed.
And the priest shall make atonement for all the congregation of the children of Israel, and they shall be forgiven; for it was an error, and they have brought their offering, an offering made by fire unto HaShem, and their sin-offering before HaShem, for their error.
This is from the portion Shlach. What it is about: The twelve spies; forty years for forty days; challah and tzitzit.
Other ways of counting
The tradition counts the same name in several ways. The main one is above: each letter is its number. The other eight are old and checkable too; each gives its own number, and many of them have a Torah word with the same number.
Final letters as 500–900 (mispar gadol) — 250.
Reduced, each letter to one digit (mispar katan) — 7. A Torah word with the same number is או — “or” (Genesis 24:49).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 43. A Torah word with the same number is גם — “also” (Genesis 3:6).
Cumulative: a letter plus all letters before it (mispar kidmi) — 995.
Squares of the letter values (mispar perati) — 41700.
Building: the sum grows with each letter (mispar bone’eh) — 530. A Torah word with the same number is שכיר — “hired worker” (Exodus 12:45).
The letters that come out are יגמ — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 53. A Torah word with the same number is אבן — “stone” (Genesis 2:12).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 610. A Torah word with the same number is יתר — “to remain over” (Genesis 30:36).
The number 250 appears in the classical books 14 times across 12 works. The earliest mention is ספר קרניים (~1400).
Every letter of the name explained, the words and namesakes with references, the Hebrew date, the letter and tribe of the month, day 861 of your life (±1), the psalm by age, the attestations from the classical books — a PDF sent to your email.
The number of the day, every morning
Every date has a number too. Once a year it will match the number of your name — 250. The channel posts one number a day, one verse and the Torah page it lands on. Nothing after it, no mailing list.
Hebrew is written from right to left. מרי has 3 letters: מ Mem, ר Resh, י Yod. The first letter is Mem, the last is Yod.
For an engraving, a sign or a tattoo, show the spelling to someone who reads Hebrew: transliterating a name is a choice, not the only option.
The name מרי appears in the Torah as a word 1 time. The first time is Numbers 17:25.
The verse of your name
There is a custom: at the end of the prayer one says a Torah verse that begins with the first letter of one's name and ends with its last. For מרי these are מ and י. The Pentateuch has 2 such verses. The first of them is Exodus 22:28:
מלאתך ודמעך לא תאחר בכור בניך תתן לי
This is from the portion Mishpatim. What it is about: Laws of the servant, damages, theft and pledges; “an eye for an eye” as compensation; the sabbatical year; “we will do and we will hear”.
«And the priest shall make atonement for all the congregation of the children of Israel, and they shall be forgiven; for it was an error, and they have brought their offering, an offering made by fire unto HaShem, and their sin-offering before HaShem, for their error.»
Each Hebrew letter has a number; a word's number is their sum (alef 1 … tav 400). The page is the remainder modulo 354: the Torah divided into 354 pages of 861 letters, as the lunar year has 354 days. Everything can be checked by hand.